.fs-sm {
  @include ms-respond(font-size, -1);
  line-height: 1.5;
}
.fs-base {
  @include ms-respond(font-size, 0);
  line-height: 1.5;
}
.fs-md {
  @include ms-respond(font-size, 1);
  line-height: 1.8;
}
.fs-lg {
  @include ms-respond(font-size, 3);
  line-height: 1.6;
}
.fs-xl {
  @include ms-respond(font-size, 7);
  line-height: 1.3;
}
.fs-xxl {
  @include ms-respond(font-size, 10);
  line-height: 1.4;
}
.fs-xxxl {
  @include ms-respond(font-size, 14);
  line-height: 1.2;
}